Galvalume Steel Corrugated Roof Sheet

Galvalume steel corrugated roof sheet has designs of wavy, trapezoidal designs, ribbed galvanized roof panels, etc. It can be used as a single-layer board, covering an existing roof, or a steel sandwich panel. Galvalume sheet itself is more cost-effective than traditional roofing materials. In addition, it is light in weight and easy and quick to install. In addition, it is durable and recyclable and requires less maintenance. All these factors make galvalume steel corrugated roof sheet an economical choice. It has a bright and smooth surface. The corrugated design is also excellent from the outside. In addition, it has good adhesion, so you can paint it in different colors. Having a galvalume steel roof makes it easy to achieve aesthetic purposes.

Superior Corrosion Resistance
The aluminum layer makes the aluminized zinc steel have excellent corrosion resistance. When the zinc wears, the aluminum will form a dense aluminum oxide layer, preventing the corrosion-resistant substance from further corroding the interior. Therefore, the corrosion resistance of GL plate is 3 times that of galvanized plate. Under the same circumstances, the service life of GL roof panels is 2-6 times that of GI roof panels.
High Thermal Reflectivity
Its reflection coefficient is twice that of galvanized metal roof panels, which can reduce the indoor temperature in summer and reduce the power consumption of air conditioning. This feature makes it ideal for hot climates.
High Temperature Resistance
GL roofing sheet has good heat resistance and can withstand high temperatures above 300 degrees. Therefore, it can be used for a long time at high temperature.
Smooth Surface, Uniform Appearance
The aluminized zinc roof panels are smooth, silvery white with uniform sequins. It looks beautiful and can be used directly. Therefore, it is widely used for commercial and residential purposes.
Good Formability And Adhesion
The adhesion between the GL coating and the paint is good and easy to paint. In addition, it also has excellent formability. That is, punching, cutting, and the like are easy.

Scope of Application

Commercial buildings: hospitals, schools, shops, government buildings, etc.
Residential projects: private houses, apartments, temporary houses, garages, etc.
Industrial application: warehouse, factory, etc
Agricultural use: barn, storage room, greenhouse, etc

 

Product Parameters

Product Name	Galvalume Steel Sheet
Thickness	0.12mm-6.00mm
Width	600mm-1500mm
Length	1m-12m, Support Customization
Standard	AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Thickness of Aluminum Zinc Coating	30-185g/m²
Content of Al-Zn Coating	Al: 55%, Zn: 43.5%, Si: 1.5%

 

Chemical Composition

Al	Zn	Si	Fe	Cu	Cd	Pb	Sn	Ni	Close Cr
55-58	41-43	1.5-2	0.25	0.03	0.05	0.01	0.05	0.05	0.05

 

Mechanical Properties

Grade	Yield Strength MPa≥	Tensile Strength MPa≥	Elongation A%≥
DX51D Z/ZM/AZ/AM	240-380	270-500	22
DX52D Z/ZM/AZ/AM	140-300	270-420	26
DX53D Z/ZM/AZ/AM	140-260	270-380	30
DX54D Z/ZM/AZ/AM	120-220	260-350	36
S220GD Z/ZM/AM	220	300	20
S250GD Z/ZM/AZ/AM	250	330	19
S280GD Z/ZM/AM	280	360	18
S300GD A/AM	300	380	18
S320GD Z/ZM/AM	320	390	17
S350GD Z/ZM/AZ/AM	350	420	16
S450GD A/AM	450	480	15
S550GD Z/ZM/AZ/AM	550	550	-

 

Galvanized Surface Selection

Zero Spangle	Minimized Spangle	Normal Spangle	Large Spangle

 

Type of Coating	Recommended Coating Weight
Aluminum-zinc Alloy	30/40/50/60/75/90/100/150
A: Coating quality50g/㎡,approximately equal to the coating thickness13.3pm

 

Project	Classification	Symbol
Type of Coating	Aluminum-zinc Alloy	AZ
Surface Finish	Conventional Sequins	R
	Minimize Sequins	M
	Skin Through	S
Surface Treatment	Chromate Passivation	c
	Non-chromate Passivation	C5
	Chromate Passivationoiling	CO
	Chromium-free Passivationoiling	CO5
	Anti-fingerprint	N
	Chromate-free/Anti-fingerprint	N5
	No chromate high weather resistance fingerprint	NW
	Oil filling	0
	No treatment	U

 

Material Comparison

Chinese Standard	European Standards	American Standard	Japanese Standard
DC51D+AZ	DX51D+AZ	CS Type B, Type C	SGLCC
DC52D+AZ	DX52D+AZ	DS	SGLCD
S250GD+AZ	S250GD+AZ	255	-
S300GD+AZ	-	-	-
S350GD+AZ	S350GD+AZ	345	Class1 SGLC490
S550GD+AZ	S550GD+AZ	550	SGLC570

Q:What about your price?

A:Our price is very competitive because we are a factory. Pls feel free to contact us if you are interested in our products.

Q:What certifications do your products have?

A:We have ISO 9001, SGS, EWC and other certifications.

Q:What kind of payment terms would you accept?

A:We always do T/T.30% T/T as deposit,70% T/T as balance.

Q:What is your MOQ?

A:We will provide Original Mill Usually 25 tonnes, but it can be adjusted according to your needs and the actual situation of the inventory.

Q:What is the delivery time?

A:10-15 days

Our factory products comply with CE/EN10204/ASTM/classification society certificates/CASO/BIS and other certificates, and all orders are subject to TPI (SGS/TUV/BV, etc.) inspection